Copying PS3 disks to usb or internal hd help?

some of my disks i try to back up to usb take forever to copy the multiman, or just stop copying, is there a better way to do this or another ps3 homebrew that works better, or different setting i need to use in mm for some disks, these disks are fine, play fine, just like them on hd cause it a big drive, some disks copy fast, 2 such games that are slow or wont back up to usb or internal for me are... game of thrones and uncharted 3.